Orbitrek is a waste of money!

I purchased my Orbitrek several months ago. I was looking for a machine that offered a solid cardio workout. And that's what I got, for about the first week. After that, the machine's weaknesses became painfully obvious. I have to tighten all of the bolts after every workout because the Orbitrek shakes and rattles itself loose. Also, the frame is rather weak and the arm that supports each petal began to bend downward shortly after the first session. I personally feel that the Orbitrek is a rip off, and I certainly won't be doing further business with Thane.